Well I built a C-Beam XL around a year ago, I am still learning things as I make stuff with it, it has been quite a wonderful learning experience.
Now I have gained enough confidence and knowhow to Mill the required Plates to build an Acro Laser System using the Acro Laser Sketchup Model.
I have pulled the Model apart in Sketchup, isolated the Plates and generated the G-Code to cut/Mill the plates.
I have used Sketchucam to generate the G-Code.
I Use Mach3 on my C-Beam XL to Mill.